Ignition system for internal-combustion engines.



I. MARX. IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES.

v APPLICATION FILED AUG. 15, 1913. 1 1,084,096, Patented Jan. 13, 1914.Z SHEETS-SHEET 1. I

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Y APPLIGATION FILED AUG.15, 1913. 1,684,096. .7 Patented Jan. 13, 1914.

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Specification of Letters Patent Patented Jan. 13, 1914.

Application filed August 15, 1913. Serial N o. 784;,961.

To all whom it may concern:

Be it known that I, JOSEPH MARX, citizen cf the United States, residingat Hartington, in the county of Cedar and State of Nebraska, haveinvented certainnewand useful Improvements in Ignition Systems forInternal-Co1nbustion 'Engines, of. which the following is aspecification.

The present invention relates to a governor controlled ignition systemfor internal combustion engines the object of'the invention being toprovide a device of this character which embodies novel features ofconstruction whereby the time of sparking can le changed and the tensionupon the governor correspondingly regulated without the necessity ofstopping the engine.

Further objects of the invention are to provide a governor controlledignition system of this character which is comparatively ample in itsconstruction, which can be easily and quickly manipulated, and whichenables the speed of the enginetto be readily cont-rolled by theoperator..

With these and other objects in view, the

combinations and arrangements of the parts as will more fully appear asthe description pro- 7 thereof being pointed out in the appended claims.

For a full understanding of the invention, reference is to be had to thefollowing description and accompanying drawings, in which Figure 1 is aside elevation of an internal combustion engine provided with anignition and speed controlling device constructed in accordance with theinvention, portions being broken away. Fig. 2 is a top plan view of thesame, portions being broken away, and Fig. 3 is an enlarged detail viewtion.

(,orrespouding and like parts are referred description and indicated inall the views of the drawings by'the same reference characters.

Specifically describing the present embodiment of the invention, thecharacterA designates an internal combustion engine of the conventionalconstruction, the said engine including a bed 1, cylinder 2-, crank shat 3, and fly wheel 4; The cylinder 2 is provided at one side thereofwith a conventional makeigniter provided with the usual t-ri arm 6. Theend of the cylinder 2 is provi ed with of the speed controlling lever,parts being shown in secthe spring seated exhaust valve. 7 and the lever8 for operating the same, the said lever being pivoted between its endsand one extremity thereof serving to open the exhaust valve when theopposite end ther of isengaged by the end of the valve operating slide 9upon the inward movement thereof.

The crank shaft 3 is provided wit-h a pinion 10 which meshes with a'gear wheel 11 upon a short counter-shaft 12, the said gear wheel beingprovided with a cam 13 adapted to engage a roller 14 upon the end ornose of the valve operating slide 9 so that as the gear 11 rotates thesaid slide 9 will be reciprocat-ed back and forth. This operation of thevalve operating slide 9 is so timed with reference to the movements ofthe piston Within the engine cylinder as to open the exhaust valve 7 andpermit a fresh clnlirge to enter the engine at proper interva s.

An ignition operating detent 15 is pivotally mounted upon the valveoperating slide 9 at an intermediate point between its ends, asindicated at 16,-the nose of the detent projecting upwardly away fromthe slide 9 so as to engage the trip arm 6 of the igniter 5, while theopposite end of the detent is connectedto a slide or sleeve 17 upon aspark controlling. slide 18, one end of which is formed. Witha curvedextension 18 which has a pin and 'slot connection 19 with the main lever20'. I The opposite end of the spark controlling slide 18 is adaptedtoslide upon an adjustable seat 21 and is provided with a cam portion18, adapted to cooperate with the rounded nose 21 of the said seat 21 toraise and lower the spark controlling slide as .it is reciprocated backand forth by main lever 20. Suitable guides and 61 are provided for theslide 18. v

The rear end of the adjustable seat 21 is hinged at 22 to a baseplate23-supported by the bracket 24. A set screw 25 passes through the baseplate 23 and engages the lower surface of the adjustable seat 21 so thatthrough the medium of the set screw the adjustable seat can be swungupward depressed as may be found desirable.

The end of the spark controlling slide18 adjacent the main lever 20passes through a guide 26 upon the frame With this construction it willbe obvious that by manipulation of the lever 20 the spark controllingslide 18 can be reciprocated 10ngitudinally and that as the. slide istime upon one side thereof the 27 of the lever 20.

ly or moved the cam portion 18 thereof will cooperate with the seat 21to raise and lower the rear end of the slide and thereby operate throughthe sleeve 17 to adjust the ignition detent 15 upon the valve operatingslide 9.

This admits of the sparking being advanced.

by moving the main lever 20 away from the fly wheel 4 and toward thecylinder 2.

A governor 28 is mounted upon the crank shaft 3, the governor collarengaging one end of a lever 29 which is pivotally mounted between tsends upon a suitable bracket at 30, the opposite end of the lever beingprovided with a curved nose 31 which is adapted to engage a'shoulder 32upon the 'valve operating slide Q to retain the said slide at the rearlimit of its movement and out of the path of the cam 13 when the speedof the engine becomes excessive. The free end of the governor lever 29is connected by a link 33 to one arm of a bell crank lever 34, theoppositearn of the said bell crank being connected by a spring 3.) tothe main lever 20. This spring 35 is the only spring which is embodiedin the governor construction, and it will be apparent that the tensionin thisspring is increased as the main lever 20 moved away from theflywheel and toward the cylinder for the purpose of advanci'n g thespark, as has been previously described.

The lever 20 is formed at one side thereof with a nose 36 adapted toengage the teeth 37 upon a segmental rack 38 upon the lever frame 27.The lever 30 is pivoted upon a bolt 39 and a spring a0 is applied tothis bolt in such a manner as to retain the lever yieldingly in anupright position and thereby'retain the nose 36 in a yielding engagementwith the teeth of the segmental rack.

When the main lever 20 is moved toward the fly wheel to the extreme endof the segmental rack 38, the engine is brought to a stop. In order tostart the engine, the main lever 20 is moved a slight distance towardthe cylinder so as to set the ignition system for a late spark and alsoplace the spring 35 under suihcient tension to hold the nose 31 of thegovernor lever out. of engagementwith the shoulder 32 of the valveoperating slide 9. In order to increase the speed of the engine, thelever 20 is advanced along the rack 38 toward the cylinder 2, therebyadvancinjg the spark and simultaneously in creasing the tension of thespring 35. The tension in this spring 35 controls the action of thegovernor 28, since the greater the tension in the spring, the morepowerful must ing.

be theaction of the governor'to overcome the tension of the spring andswing the gov ernor lever 29 to bring the nose 31 into on gageinent withthe shoulder 22,0f the valve operating slide 9 and thereby preventfurther operation of the slide until after the speed of the engine isdecreased. \Vith this fiii construction the lever 20 can be moved so asto advance or retard the spark and simulatin' the i nite'r a 5 needcontrollin -lever b D b 7 means actuated by the speed controlling leverfor adjusting "the detent toregulatethe sparking, a governor, anoperative connection between the governor and the valve operating rod, alever having one end thereof connected to the governor mechanlsm, and aspring connecting the opposite end of thelever to the speed controllinglever whereby the tension of the spring-will be increased when thespeed. controlling lever is-moved to advance the spark.

2. A speed controlling device for internal, combustion engines 1nclud1ngan igniter, an

exhaust valve operating rod, cam means for actuating the oust valveoperating rod, an adjustable detent upon the same for actuating theigniter, a speed controlling lever, an operative connection between thespeed controlling lever and the said adjustable detent, a springlessgovernor, a governor ever provided with a nose adapted to engage ashoulder upon the valve operating rod, a lever pivoted between its endsand having one end thereof in connection with the governor lever, and aspring connecting the op posite end of the lever to the speedcontrolling lever, the said spring controlling the action of thegovernor and the tension of the spring being increased when the speedcontrolling lever is moved to advance the spark- In testimony whereof Iaiiix my signature in presence of two witnesses.

. JOSEPH MARX. Witnesses: I

' LoUIs Manx,

FRANK Hoons'rm a.

Glories of this patent may be obtained for five cents each, byaddressing the fiommissioner of irritants, Washington, D. C.

